Crane



Nov. 9, l1937. R. E. LJUNGKULL 2,098,299

CRANE Filed May 2, 1936 3 Sheets-Sheet l olf- EL'un kull. B5 J 9 Nov. 9, 1937. R. LJUNGKULL 2,098,299

I CRANE Filed May 2, 195e s sneetssneet 2 NOV. 9, 1937. R E. .Il JUNGKULL 2,098,299

CRANE n Filed May :2,v 1956 3 sheets-sheet s s se e7 Invenkor. Rolf E Ljung kullj/ Patented Nov. 9, 1937 prurito sms CRANE Rolf E. Ljungkull, St. Paul, Minn., assignor to American Hoist and Derrick Company, St. Paul, Minn., a corporation of `Delaware Application May 2, 1936, Serial No. 77,555

25 Claims.

'I'.he present invention has relation to a crane, or like machine.

An object of the invention is to provide in a crane, or like machine, a novel and improved f swivel joint for conveying or transporting a fluid between a supporting structure and a platform revolvable thereon, either from the supporting structure to the revolvable platform, or from the revolvable platform to the supporting structure.

A further object is to provide in a crane, or like machine, a novel and improved swivel joint for conveying or transporting a fluid, such as steam, from or to a supporting member to or from a supported member revolvable upon the support- 1 5: ing member.

A further object is to provide in a crane, or like machine, a novel and improved steam conveying or transporting swivel joint for carrying operating steam from a source of steam supply on 250g a car body to steam actuated mechanism on a platform mounted to have revolvable movement upon a car body.

A further object is to provide a crane, or like machine, which will include a car body having thereon a revolvable platform and steam actuated mechanism on the revolvable platform for opera-ting workable elements of, and/or for propelling the crane or machine, and will also include a second car body having thereon a steam O- boiler, or other source of steam supply for operating said steam actuated mechanism, and means for conveying operating steam from said boiler or source of steamsupply to said steam actuated mechanism.

A further object is to provide a crane, or like machine, which will include steam actuated mechanism upon a revolvable platform carried by a car body, a source of steam supply for the steam actuated mechanism upon a different car body, and novel and improved means for conveying operating steam from the source of steam supply to the steam actuated mechanism.

A further object is to provide a crane, or like machine, which will include a pair of connected car bodies having supporting wheels and adapted to be transported as a unit, a revolvable platform on one of the car bodies, steam actuated machanism on the revolvable platform for operating workable elements of the crane, as the drums, boom, compressor for providing air brake supply air, etc., and/or for propelling the crane unit in either direction, a boiler for steam, or other source of steam supply, on the other car body, and novel and improved means for conveying operating steam for the steam actuated mechanism from said boiler or source of steam supply to said steam actuated mechanism.

A further object is to provide a crane, or like machine, which will include a car body having thereon wheels and a platform .revolvable about a vertical axis, steam actuated mechanism on the revolvable platform for propelling the crane or machine, and 'a drive shaft for accomplishing propulsion of the crane or machine extending along, or coinciding with, the vertical axis for said platform and having its upper portion arranged to be driven by said steam actuated mechanism and its lower portion arranged to drive the wheels of said car body, and will also include a; second car body having wheels and connected to the car body Vfirst mentioned and having thereon a steam boiler, or ,other source of steam supply for operating the steam actuated mechanism, and a novel and improved steam conveying or transporting swivel joint in surroilndiner relation to lsaid drive shaft for carrying Aoperating steam from` said steam boiler or other source of steam supply to said steam actuated mechamsm.

A further object is to provide a crane, or like machine, which will include a car body having thereon wheels, air brakes yfor said wheels, and a platform revolvable about a vertical axis, steam actuated mechanism on the revolvable platform for propelling the crane or machine, a drive shaft for accomplishing propulsion of the crane or machine extending along, or coinciding with, the vertical axis for said platform and having its upper lportion arranged to be driven by said steam actuated mechanism and its lower portion arranged to drive the wheels of said car body, air brake mechanism upon the revolvable platform, and an air brake pipe extending from said air brake mechanism along the axis for said platform to said air brakes, and will also include a second car body having vwheels and connected to the car body rst mentioned and having thereon a steam boiler, or other source of steam supply for operating said steam actuated mechanism, and novel and improved rmeans including a steam conveying or transporting joint in surrounding relation to said driveshaft and said air brake pipe for carrying operating steam from said boiler or other source of steam supply to said steam actuated mechanism. i

And a further object is to provide a crane, or like machine, which Will include a car body having thereon wheels, air Vbrakes for said wheels, and a platform revolvable about a vertical axis, steam actuated mechanism on the revolvable Y ing relation to each other, and one of the air brake pipes leadingto thebefore mentioned airl brakes, and will also include a second car body :l connected to the car body first mentioned and having thereon a steam boiler, or other sourceY platform for propelling the crane or machine, a hollow drive shaft for accomplishing propulsion of the crane or machine extending along, or coin-v ciding with, the vertical axis for said platform and having its upper portion arranged to berdriven by said steam actuated mechanism and its lovverV portion arranged to drive the wheels of said carbody, air brake mechanism on` the re-Y volvable platform, and air brake pipes extending from said air brakernechanism and downwardly through said hollow drive shaft, said air brake pipes being arranged in spaced apart,-surround of steam supply foroperating said steam actu# ated mechanism, wheels with air brakes for said second car body, an air brake line common to the air brakes for the wheels for both said car body and said second carl body, one of the before mentioned air lbrake lpipes leading fromV the air brake mechanismen said revolvable platform tov said common air brake line, and novel andimproved means including a steam conveying orV transporting swivel 'jointvin surrounding and clearing relation to said drive shaft and said air brake pipes for carrying operating steam from said boiler, or other sourceof steam supply upon said second car body, past or through the first mentioned car body and its revolvable platformV to the steam actuated mechanism upon saldrevolvable platform.` Y f With the above objects in view, aswell asr spirit of the invention and the scope of the j claims which follow. Y

In the accompanying drawings forming a part l of this specification,

Fig. 1 is a side elevational view of a crane, or like machine, in which'the features andcharacteristics of the invention are incorporated, parts being in section, other parts being'omitted, and

still other parts being broken away; Y

' Fig. 2 is a detailsectional view of the mounting for the vrevolvable platform of the machine and an arrangement for revolving the platform;

Fig. 3 is an enlarged, fragmentary, transverse, vertical sectional view of the machine, taken on line 3-3 in Fig.V 1, detailing features of the invention;

Fig. 4 is Yan enlarged, fragmentary, longitudinal, vertical sectional view of the machine, taken substantially at a right-angleY to thev disclosure of Fig. 3, further detailing some of thefeatures shown in said Fig. 3, and detailing additional features at higher Yelevation in the machineyand Fig. 5 is an enlarged, fragmentary, vertical sectional view, taken ason line 5--5 in Fig. 4.

With respect to the drawings and the numerals of reference thereon, the crane, or like machine, includes a car body o rfrarne- I0 having bearings II for axles which support traveling wheelsvl2. The machine is adapted to be self propelled,`as

Well as propelled by a locomotive, along vthe track j I3. The car body or frame I may be of r'anyfor dinary or pref-erred construction. Air brakes on said car body or framefor the Wheels I2, are designated generally at I4. A train air brake line for the air brakes I4'is indicated I5. When the 'crane or machine is propelled by a locomotive,

the air brake line I is connected up in usual manner so that the air brakes I4 can be operated from the cab of the locomotive, in common with Vall of the cars of a train, in a. Well known manner. V `A second carV body or frame of the crane or machine is represented at I6. Said second car body or frame I 6 is adapted to be propelled by the car body or frame I0, or by a locomotive, and to .this end the car body or frame I6 is coupled, as at I1, to the carV body or frame I0. The car body or frame I6 has bearings I8 for axles which support traveling wheels I9. Said car body or frame I6 may likewise be of any ordinary or'preferred construction. Air brakes, denoted geny erally at 20, on the car body or frame I6 are for the wheels I9. 'I'he air brakes 20are connected Y to the air brake line I5.

king pin of the crane or machine -about which Va. platform, represented at 23, revolves, and also constitutes a drive shaft passing through the car body or frame I0 and through the revolvable platform 23. The bull'gear 2| includes an external, vertically disposed gear surface or toothed portion 24, and an inner, circumferential portion providing a lower operative railv 25 in the machine. ably mounted at its lower portion, as at 26, in the car body or frame I0, and passes freely or loosely, as at 21, through the upper wall or surface 28 of said car body or frame. The platform 23 is revolvably mounted by employment of an upstandingv bearing 29 vupon said platform which receives the hollow shaft 22, a circumferential upper operative rail 30 uponthe base of the platform and vdirectly above the lower operative 'i rail 25, and rollers 3|, engaging the-lower operative rail 25 of the bull gear 2| and engaged by said upper operative rail 30 upon said platform, upon a container ring represented generally at 32. 5 Y

Mechanism for revolving the platform 23 in either` direction may include a short vertical shaft 33 mounted lin said platform 23 and extending a short distance above and below the platform. As disclosed, a gear 34 is fixed to the upper portion of the short shaft 33 and a pinion 35 is fixed to the lower portion of said shaft; Said pinion 35 meshes with the gear surface of toothed portion 24' of the bull gear. The gear 34 meshes with a pinion 36 upon a second short vertical shaft 31 suitably mounted in the platform, and the upper end portion of the short shaft 3l xedly carries a bevel gear 38 arranged above the platform. Any suitable means may be employed to drive the bevel gear 38 in either direction to thus revolve the platform. Evidently, whenthe bevel gear 38 is turned, the vertical shaft 33 and the pinion 35 will also be turned. Rotation of said pinion 35 will vcause it to ride along the gear surface or toothed portion 24 of The Vvertical hollow shaft 22 is suit- 'The revolvable platform may carry all of the usual appurtenances found upon the platforms of cranes, excavators, or like machines. As disclosed, numeral 39 denotes drums, 66 steam actuated mechanism, 6l a tank for compressed air, and 62 indicates valve structure for handling compressed air, upon said revolvable platform 23.

The hollow shaft 22 includes a bevel gear A3 upon its upper portion and above the platform 23 which meshes with a bevel gear it driven by the steam Iactuated mechanism 46, and includes a bevel gear i5 upon its lower portion which meshes with a bevel gear 46 upon a driven shaft El mounted in the car body or frame il] and suitably connected up to drive the traveling wheels l2. Obviously, operation of the steam actuated mechanism drives the wheels I2 in direction depending upon the direction of lope-ration of said steam actuated mechanism.

The car body i6 carries a steam boiler d6 adapted to contain a source of steam supply for operating the steam actuated mechanism dil. Steam is conveyed from the boiler 8 to said steam 4actuated mechanism 56 by novel and impro-ved means, indicated generally at 69, of character and construction prcsenty to be described. A steam pipe connection 56 leads from the steam boiler 48 to said means 59 and a steam pipe connection 5! leads from the means 69 to the steam actuated mechanism 36. The pipe connection 56 leads vertically downward from the top of the boiler i8 at one side thereof to about the elevation of the upper part of the car body or frame I6, and thence leads horizontally along a side of the upper portion of the car body lor frame I9 and thence inwardly on said car body or frame i6 to the means 49. The horizontal portion of said pipe connection 59 includes an expansible coupling 52 situated between the car bodies or frames I6 and i6 to make provision for relative swinging movement of said car bodies or frames, and as disclosed said horizontal portion of the pipe connection 56 is supported upon the car body or frame I9, as at 53.

An air compressor 5d for supplying air to the compressed air tank 4l is supported upon said tank lll. As shown, said air compressor 5.- is actuated by steam led thereto by a pipe connection 55 from the pipe connection 5l. Numeral 56 represents an exhaust outlet from the steam actuated mechanism 56, and 5l indicates an exhaust outlet from the air compressor 5.

The valve structure 42 includes a straight air brake valve 58 and an automatic air brake valve 59. An air connection 66 leads from the compressed air tank 5I to each air brake valve 58 and 59. The air brake valve 58 controls compressed air fram the tank 4I and the air connection 60 for directly operating the air brakes I4, and the air brake valve 59 controls compressed air from said tank ll and air connection 60 for use in the train air brake line l5 to operate all of the air brakes i6 and 26. To this end, an air brake pipe or connection 6l extends from said air brake valve 58 to said air brakes M, and an air brake pipe or connection 62 extends from said air brake valve 59 to said train air brake line i5.

The air brake pipe or connection 6l includes a vertical portion 63 thereof suitably and centrally mounted within the hollow drive shaft 22, and the air brake pipe or connection 62 includes a vertical portion 64 thereof mounted within said hollow drive shaft 22 in spaced and surrounding ,75; relation to said vertical portion 63.

A cap 65, including necks, denoted 66 and 61, respectively, rotatably mounted in fluid-tight manner upon the upper ends of said vertical portions 66 and 6d and situated above the hollow drive shaft 22, supports a pipe 68 of the connection 6l leading from the air brake valve 58 to the vertical portion 63 and a pipe 69 of the connection 62 leading from the air brake valve 59 to the vertical portion 66.

A fitting i6, connected to the lower ends of the vertical portions 63 and 64 and situated below the holow drive shaft 22, includes a passageway 'H leading from the vertical portion 63 to a pipe 12 of the connection 6l extending to one side of the car `body or frame lf3 and to the air brakes I4, and a passageway l@ leading from the vertical portion 6d to a pipe 'Ed of the connection 62 extending to the other side of said car body or frame I6 and to the train air brake line l5.

Thus, it will be seen, the crane or machine includes straight air brakes upon the car body or frame lil operable directly from the air brake valve 58, and also includes automatic air brakes upon both said car body or frame i6 and the car body or frame i6 operable from the air brake valve 59 and through the instrumentality of the train air brake line i5. When the steam actuated mechanism is inoperative and the air brake line l5 is connected to a locomotive, the air brakes upon the car bodies or frames i6 and i6 are operable from the cab of the locomotive, as will be apparent.

The novel and improved means 49 is constituted as a swivel joint including a disc top member l5 bolted up against the lower surface of the rcvoivable platform 23, as at T6, in surrounding relation to the hollow drive shaft 22 which constitutes the vertical axis about which said platform 23 is revolved. As designated at TF, the disc top member 15 of the swivel joint includes a central opening freely receiving said hollow drive shaft 22. Also, said disc top member l5 includes a shallow, horizontally disposed, annular groove 18 in its lower surface, and said shallow groove 18 extends about a complete circumference of the top disc member l5 which is concentric with the vertical hollow drive shaft or axis 22. The pipe connection 5i, leading from the means 49 to the steam actuated mechanism 66, is threadedly re-4 ceived, as at '56, in the disc top member 15 to afford communication between the shallow, annular groove i8 and said steam actuated mechanism lll). Said pipe connection 5I passes through an opening 99 in the revolvable platform 23.

The swivel joint i9 also includes a bottom member 86 constituted as an annular trough having an annular, horizontally disposed base 6l situated directly beneath and in spaced relation to the shallow, annular groove T6, aninner, upstanding circular wall 62 adjacent the inner, circular margin of said shallow, annular groove i8, and an outer, upstanding circular wall 83 adjacent the outer, circular margin of the shallow, annular groove i6. Said inner, upstanding circular wall 82 integrally supports a horizontal, inwardly extending, annular flange Bil against which an annular portion 85 of the lower surface of the disc top member l5 adjacent the inner, circular margin of the shallow, annular groove 'i9 is rotatably seated, and said outer, upstanding circular wall 63 integrally supports a horizontal, outwardly ex-v tending annular flange 66 against which an annular portion 8l of the lower surface .of said disc top member 15 adjacent the outer, circular margin of said shallow, annular groove 18 is rotatably isf seated. The annular t'rough or VbottomY member 80 and its upstanding inner and outer circular walls 82 and 83 are concentric with the hollow drive member or axis 22, as well as directly beneath the shallow, annular groove 18. The disc top member 15 is rotatable with the platform 23 and'relatively to the annular trough or bottom member 80. Evidently, said members 15 and 80 together constitute a closed, annular chamber, denoted 98, which is at all times in communication with the steam pipe connection 5| leading from the swivel joint or means 4.9 to the steam actuated mechanism 49. The steam pipe connection 50, leading Vfrom the steam boiler 48 to said swivel joint or means 49, is threadedly received, as at 89, in the horizontal base 8| of the bottom member 80 to be in constant communication with Y said closed, annular chamber 88.

The horizontal, inwardly extending, annular flange S4 upon the inner, upstanding circular wall 82 and the annular portion 85 of the lower surface of the disc topmember 15 are held in engaging, relatively rotatable relation to each other by an inner, annular retaining member 9| Vfor Y the annular trough or bottom member 80. Said retaining member 9| includesV an opening 92 clearing the vertical hollow drive shaft 22, and also includes an outer, vertical, circumferential surface 93 in spaced relation to the inner, 11p-Y standing circular wall 82 and at the elevation of said wall 82. A horizontal, outwardly extending, annular flange 94 uponthe upper portion of the annular retaining member. 9| includes a horizontal upper surface 95 upon which'the horizontal, Y

inwardly extending, annular fiangell rotatably rests, while also in engagement with said annular portion 85, and said annular flange 94 also includes an outer, vertical, circumferential surface 96 in contiguous and rotatable relation to an inner, vertical, circumferential surface 91 of the inner, upstanding circular wall 82. The upper surface of the body of the annular retaining member 9| is fitted up against the lower surface of the disc top member 15. An inner packing 98 is situated in the annular space between the circumferential surfaces 93 and 91 and beneath the annular flange 94, and an inner, annular packing retainer 99 includes an upper, vertical, annular portion |08 inthe annular space between said circumferential surfaces 93 and 9? and holding the packing 9B in engagement with the lower surface of the annularange 94. Said annular packing retainer 99 also includes a lower, inwardly extending, horizontal portion beneath and in spaced relation to the annular retaining member Sl. Headed and nutted screw bolts |02 fasten the retaining member 9| up against the disc top member 15, and headed and nutted screw bolts |93 assist in fastening said retaining member to said disc top member and also tightly retain the upper, vertical, lannular portion V|99 of the annular packing retainer 99 within the annular space between the circumi ential surfaces 93 and 91 `and in proper engagement with the packing 98. The headed and nutted bolts |82 pass through the disc top member 15 and the annular retaining member 9 i, and the headed and nutted bolts |03 pass through said disc top member and annular retaining member and also pass through the lower, horizontal portion |0| of the annular packing retainer. Said horizontal portion |0| includes opening |94 about the hollow drive shaft 22. It will be seen that the inner, annular retaining Y annular flange |01.

member 9| and the inner, annular packing retainer 99 are fixed to rotate with the disc top member 15, and thatthe annular trough or bottom member 80 and said disc top member, inner, annular retaining member and inner, annular packing member, as a unit, are relatively rotatable.

The horizontal, outwardly extending annular flange 88 upon the outer, -upstanding circular wall 83 and the annular portion 81 of the lower surfacerof the disc top member 15 are held in engaging, relatively rotatable relation to each other by an outer, annular retaining member for said annular trough of bottom member 80. Said retaining member |05 includes an inner, vertical, circumferential surface |06 in spaced relation to the outer upstanding circular wall 83 and at the elevation of said wall 83. A horizontal, inwardly extending annular flange V|01 upon the upper portion of the annular retaining member |05 includes a horizontal upper surface |08 upon which the horizontal, outwardly extending, annular flange 86 rotatably rests, while also in engagement with said annular portion 81, and said annular flange |01 also includes an inner, Vertical, circumferential surface |09 in contiguous and rotatable relation to an outer, vertical, circumferential surface I I9 of the outer, upstanding circuiar wall 83. The upper surface of the body of the annular retaining member |05 is fitted up against the lower surface of the disc top member '25. An outer packing is situated in the annular space between the circumferential surfaces 95 and H9 and beneath the annular flange |91, and an cuter, annular packing retainer H2 includes an upper, vertical, annular portion I3 in the annular space between Vsaid circumferential surfaces |8B and |0 and holding the packing in engagement with the lower surface of the Said annular packing retainer 2 also includes a lower, outwardly extending, horizontal portion ||4 beneath and in spaced relation to the annular retaining member |05. Headed and nutted screw bolts ||5 fasten the retaining member |05 up against the disc top member 15, and headed and nutted screw bolts ||6 assist in fastening said retaining member to said disc top member and also tightly retain the upper vertical annular portion ||3 of the annular packing retainer ||2 within the annular space between the circumferential surfaces Hit` and 0 and in proper engagement with the packing The headed and nutted bolts ||5 pass through said disc top member and annular retaining member |05, and the headed and nutted bolts pass through said disc top member and annular retaining member and also pass through the lower, horizontal portion ||4 of the annular packing retainer ||2. The outer, annular retaining member |05 and the outer, annular packing retaining ||2 are fixed to rotate with the disc top member 15, and the annular trough or bottom member 80 and said disc top member, outer, annular retaining member and outer, annular packing member, as a unit, are relatively rotatable.

. As will be quite clear from the drawings, the swivel -joint including the disc top member and-the annular trough or bottom member 8U is disposed at elevation somewhat above the car body or-frame il?, and is not connected to saidl car body or frame. Instead, said annular trough or bottom member 80 of the swivel joint is held :against turning movement, when the platform 23 andthe disc top member 15 are revolved upon the car body or frame, through the instrumentality of a stop member xed upon the car body or frame, as at H8, and a stop element I9 upon the annular trough or bottom member Sii engaged by said stop member. As disclosed, the stop member includes spaced apart, upstanding legs |2ii, and the stop element |59 is constituted as a lug or strip upon the base 8| of the annular trough or bottom member Eil extending downwardly, more or less loosely, between said upstanding legs |20. The lug or strip lid and the upstanding legs |20 extend transversely of the annular base 8| at one side thereof. Obviously, when the platform and disc top member 15 with annular retaining Vmembers 9! and |05 and annular packing retainers 99 and H2 are revolved, in either direction, about the hollow drive shaft or axis 22, the stop element il!! by engagement with one or the other of the upstanding legs |29 retains the annular trough or bottom member 8B against rotative movement upon the car body or frame il). At the same time, relative swinging movement between the platform 23 and said car body or frame iii can have no detrimental eiTect upon the swivel joint, it being evident that tilting or rocking movement of the revolvable platform upon its vertical vaxis will. simply, cause the stop element. lug or strip H9 to move freely. upwardly and downwardly and inwardly and outwardly, in the slot between the upstanding legs |20.

Or, stated otherwise, the annular trough or bottom member 80 is secured to and carried by the Ydisc top member 15. itself rigidly supported upon the revolvable platform 23. and said annular trough or bottom member is. at the same time. mounted so there can be relative rotari1 movement between theV annular trough or bottom member and said Vdisc top member 15. Also.

said annular trough'or bottom member 8i! is in spaced relation to and entirely clear of the car body or frame lil. and is held against rotation relative to said car body or frame by a tongue and slot arrangement adapted to tbe purpose of permitting free tilting. swinging and/or rocking movement of the revolvable platform. and the car body or frame relatively to each other without in any manner exerting detrimental action upon the upper and lower elements of the swivel joint which would have tendency to destroy said swivel joint and to render it unfit to properly convey or transport steam. y

It will be apparent that were the annular trough or bottom member @il directly or rigidly attached to the car body or framelii. all of the relative tilting, swinging and/or rocking movements between the revolvable platform 23 and said car body or frame would have to be resisted and absorbed by the elements ofthe swiveljoint which hold the disc top member 'l5 and said annular trough or bottom member 5l! to each other. Obviously, said relative tilting, swinging and/or rocking movements would in a short time completely destroy the swivel joint. lin the arrangement as illustrated and described, the only action which can possibly be exerted upon the elements of the swivel joint is the rotative action of the revolvable platform which causes the stop clement ||9 to be brought into pressing engage# ment with one or the other of the legs |20. The resultant force thus exerted upon the swivel joint is in direction exactly counter to the direction of rotation of said revolvable platform, and the disc top member, with its appurtenances, revolves easily, smoothly and evenly upon the stationarily held annular troughv orpbottom member. There is no structure present which could exertjinuence upon the'disctop member l5 and the annular trough or bottom member 8% in direction tending to disconnect said members l5 and 80 by tearing them apart, and, hence, there is in the crane or machine no possibility of the swivel joint becoming impaired and unt'for its purpose even after very long and continued use. swinging and/or rocking movements between the revolvable platform 2S and the car body or frame are possible without disengaging the threaded pipe connection 5e fromthe horizontal base 8| of the member 8G. In an installation the pipe connection 5i) need not necessarily be tightly fix-ed in its support. And, too, said pipe connection Eil has some flexibility. The pipe connection actually, be loosely supported. Disengagement of the pipe connection is no problem in practice.

The crane or machine as illustrated in the drawings and as hereinbefore fully described is constituted as a self-contained unit including two car bodies or frames each with traveling wheels and air brakes. Also, each car body or frame of the self-contained unit includes thereon a common train air brake line. The car body or frame it Vsupports a revolvableV platform 23 which carries a steam engine or engines, compressed air for air brakes and air brake valves, and may carry all appurtenances usually found upon theturntable of a crane, or like machine. As disclosed, the revolvable platform 23 carries mechanism for operating straight air brakes for the wheelsV |2 of the car body or frame Ib, whereby the Car including this car body or frame can be brought to a stop independently of the train line braking system. Said revolvable platform 23 also carries mechanism for operating automatic airbrakes through the instrumentality of an air brake line including the air brakes upon .both car bodies or frames lil and IE. And thearrangement is such that the air brakes upon the car bodies or frames li! and l5 can be operated from the cab of a locomotive through the instrumentality of a train air brake line including said air brakes upon said car bodies or frames I and l5 as a part thereof, when thetwo oar unit constituting the crane, or like machine, is being transported as a part of a train propelled by a locomotive. The car body or frame itV carries the steam to be utilized in the steam engine or engines upon the revolvable platform 21B as the actuating medium for said steam engine or steam engines, and the means 49, including the swivel joint as a part thereof, constitutes a completely satisfactory, eilicient and dependable-construction and arrangement for carrying steam for operating the steam engine or enginesirom its location upon the car body or frame I@ to said steam engine or engines.

While the swivel joint of the inventionv has been illustrated and described as when applied to convey steam from one car body to a revolvable platform upon a different car body, it is to be understood that the boiler 43 could be mounted upon the car body having the revolvable platform instead of on the separate car body, within the principles of the invention. Also, the crane, or like machine, could be permanently mounted on a barge or `base of any known or preferred character and the steam supplied to the revolvable platform from an outside source. The boiler could be mounted on the revolvable platform and the swivel joint used to lead steam from the boiler to than steam. Theair Vpiping disclosed, extending vertically along the axis for the rotatable plat-A form, may ininstances not'be employed, and' in instances a shaft such as 272 `may be entirely omittedl Lines other thanr air! piping may lead Athrough theaxis or centercf the machine, for] example, water lines, oil lines,YV electric,V conduits,

- and/or operating'rods.

' Y VWhat is claimed is:

1. In `a machine .of-` the' characterA described, a car body,A a platform thereon, a Vertical shaft about which said platform is revolvable, steam actuated Vmechanism on'said platform, a different car bodyga Source of steam supply on said vdifferent car body, and means for conveyingl steam from said source Yof steam supply 'to said steam actuated mechanism, said means including a swivel Y Vjoint consistinggof a member surrounding saidv vertical4 shaft and secured to said platform, a `second member Surrounding the vertical shaft and rotatably supportedby the member iirst vmentoned to provide a 'chamber between said member and said second mfembena' steam connectionV leading from said sourceof steam supplyV by way of-,said second memberto said chamber, a steam connection leading from said chamber by Wayof said member to said steam actuated mechanism, and a device between the second member and car bodyand securedupon said car body for precluding rotationofY said Second member. with respect to said carbody, said device having engage-Y ment with said second member.

` .2. In a machine ofk the :character described, a

car body havingtraveling Wheels, a platform on said car body, a vertical shaft about which said platform is revolvable, a, support for saidvertical shaft on said car v body, steam actuated mechanism on said platform; a differentfcarwbody having traveling wheels,"means coupling said -car body v and different car bodyltoV each other, a source of s'teamlts'upply on said different vcar body, and

Y means' for conveying joperating steam V'fortheA steam actuated mechanismnfrom said sourceofv Y steam supply to said steam actuated-mechanisrn said last mentioned means including Ya ,swivel Urjjoint consisting-of an annular menuiberA surround-v v ing saidverticalshaft andV secured `tosaid Aplatform, a secondY annular'membersurroundingthe lY vertical shaft and` rotatably supported by the ant .nular memberrstvmentioned to provide an an- Y nular chamber between said annular member and said second annularv memben'a steam connection leading'f'romV said source of steam Vsupply by way of vsaid second annular member to saidfannular chamber, a steam Yconnection leadingfrom said betweenthe second member and;v car body and seannular chamber by way of saidvannular member to said steam actuated mechanism, and! a .device cured upon4 said carbodyfor precluding rotation of said second annular member with respect 'to said second annular member. Y,

3. In a machine of the character described, a

said car body,rsaid device having engagement Vwith I Vcar bodyhaving traveling wheels,faplatform on said Vcarbody,-a verticalvshaft mounted on said?VV car bodyabout which said platform is revolvable, t steamV actuated mechanismen said* platform, a

- diiTerent'car body having traveling` wheels, meansv couplingsaid car body and said different car -body to eachother, afsou'rc of steam' supply onsaid different carbody,.- and Vmeans -for conveying' Y Inemltrer. Y t `4.Ina machine of fbodyf ,Y Y

machine'iof A.the character 'described',a`

agooaaoo steam for loperatingfthe steamV4 actuated"mecha-` nism'from said source oft'steam supply tosaid f steamfactuated 'Inechanisn'n said last mentioned means including Va swivelV joint consisting of an (annular, vmember surroundingV said vertical' shaft and secured Ato said'platformga second'annular j member surrounding thevertical shaft and rotati ably supported by the annular-member firstmeri#` tioned toprovide y"an 'annular chamber betweenA said Yannular member andV said secondannular' member', the second annular member beingvfree 1 from direct connection with saidcar body,a steam Y'connection .leading from ,said source of `steam supply byway of said second annulaifmembei' Vto saidL annular chamber, asteam connection Vleading from said annular; chamber vbyvvay of H said annular memberito Vsaid steamlactuated mechanism, anda device between thefsecond member and `car bodyfor'precluding rotation Y of said second member with respectto said car body,-"said device being ksecured upon said car body and having engagement with Vsaid second platfcrmis revolvable, a 'support for'saidvertical shaft `upon-said car body-,steam actuated'mechanis'm on said platform, a dilerent carbodyfhavf Ving `traveling Wheels',` means coupling saidycar body vand .differentr car fbodyfto each other, Ya source of steam'supply on -said diiferent-'carbodxl Y andYmeans-for conveying steam for operating `the steam actuatedv mechanism 'from said source' of steam supplytd said steam actuated mechanism, Y said last mentioned means including a swivel joint` consisting of 1an annular -member surrounding said vertical-shaft` and secured tosaid'platform', asecondfannular membersurrounding'the verti- Cal shaft/and rotatably assembled withcandirsupported bythe annular memberlirst mentioned to Y a provide an' annulanchamber between said-annu` lar member and said secondY annular member, Va steam connection Aleading from 'saidwsourceof steam supplyby way of saidsecond annular'mem- 'berf to said annular chamber, an expan'sible coupling in said mentioned'steam connectionfand at 'a location-Y between said car body and said different c'ar body, a YSteam connection leadingV f from gsaideannular chamber Vby wayof said an-if Vnularm'emberto said steam actuated; mechanism, and'adevice secured upon-said car body betweenv Y t the character"describedfaf car body having traveling wheels, a platform on` said carbody, a vertical shaft about Vwhich said` the second memberiand car body and engaged if with said second member for precluding rotationV ofV said second member with'respect Vto said car Y5. In a? supporting structureg'a platform revolvableupon 1 saidjsupporting structure, and means Vfor convey?A ling a uidbetween'said supporting structure and.` Vfsaid revolvable -p1atform, said meansincl'uding a. swivel joint consistingiof'a memberconcentric to 'the axis fortheiplatform vand secured toV said platform; 'asecond memberA concentric to said axis and rotatably; supported bythe V-flrst Amentioned Y member-topr'ovide a chamber between said member and said second member, said second memberA being free'of direct' connection with said support-VL c ingstructura-.afflu'id connection by way of said memberto'said chamber, alfiluid connection bye Way of lsaid second`member tojsaid chamber, and

,j means for Vsecuring said second member against rotative movement relatively to said supporting structure, said last mentioned meansr'an'dtsraid YsecondV member being vadapted to have substan- `'tial-ly a vertical movement relatively to each 'horizontal axis and to provide a chamber beother. Y

6. In a machine of the character described, a car body with traveling wheels, a platform rotatable about a vertical axis of said car body, steam actuated mechanism on said platform, a different car body with traveling Wheels, means coupling said car body and said different car body to each other, a source of steam supply on said different car body, and means for conveying' steam for operating the steam actuated mechanism from said source of steam supply to said steam actuated mechanism, said last mentioned means inoluding a swivel joint consisting of a member concentric to said vertical axis and secured to said platform, a second member concentric to said vertical axis and rotatab-ly supported by the first mentioned member to provide a chamber be- 'tweensaid'member and said second member, said second member being free of direct connection with said car body, a steam connection leading from said source of steam supply by way of said second member to said chamber, a steam connection leading from said chamber by way of said member to said steam actuated mechanism, and means for securing said second member against rotative movement relatively to said oar body, Said last mentioned means and said second member being adapted to have substantially a vertical movement relatively to each other. v

'7.y In a machine of the character described, a car body with traveling wheels, a vertical shaft carried by said car body, a platform rotatable about said vertical shaft, steam actuated mechanism on said platform, adierent car body with traveling wheels, means coupling said car body and said different car body to each other, a source of steam supply on said different car body, and means for conveying operating steam for the steam actuated mechanism from said source ofrsteam supply to said steam actuated mechanism, said last mentioned means including a swivel joint consisting of a member surrounding said vertical shaft and secured to said platform, a second member surrounding the vertical shaft and rotatablysupported by said member to provide a chamber Ybetween said member and said second member, said second member being free of direct connection with said car body, a steam connection leading from said source'of steam supply by way of said second member to said chamber, a steam connection leading from said chamber by way of said member to said steam actuated mechanism, and a tongue and slot interengaging device between said second member and said car body for preventing rotativemovement of said second member relatively to said car body.

8. In a machine of the character described, a car body with traveling wheels, a Vertical shaft on said car body, a platform rotatable about said vertical shaft, steam actuated mechanism on said platform, a different car body with traveling wheels, means coupling said car body and different car body to each other, aV source of steam supply on said different car body, and means for conveying operating steam for the steam actuated mechanism from said source of steam supply to said steam actuated mechanism, said last mentioned means including a swivel joint consisting of a member surrounding said vertical shaft and secured to said platform, a second member surrounding the vertical shaft and supported by the first mentioned membery to be rotatable relatively to said member-on a tween said member and said second member, said second member being free of direct connection with said car body, a steam connection leading from said source of steam supply by way of said second member to said chamber,A a steam connection leading from said chamber by way of said member to said steam actuated. mechanism, and means for securing said' second member against vrotative movement relatively tojsaid car body,` said last mentioned means and said second member being adapted to have substantially a vertical movement relatively to each other.

9. In a machine of the vcharacter described, a supporting structure, a platform revolvable upon said supporting structure, and means for conveying a iluid between said supporting structure and said revolvable platform, said means including a swivel joint consisting of a member concentric to the axis for said platform and secured to the platform, a second member concentric to said axis and rotatablysupported by the first mentioned member', said member and seco-nd member providing a chamber therebetween, fluid connections by way Aof said member` and said second member to saidl chamber, and a device for precluding rotation of said second member relatively'to said supporting structure, said device and said second member being adaptedfto have substantially a vertical movement relatively to each other.

10. In a machine of the character described, a

` supporting structure, a structure revolvable upon said supporting structure, and means for rconveying a fluid between said supporting structure and said revolvable structure, said means including a swivel joint free of direct connection with one of said structures and consisting of va member concentric tothe'axis for the rotatable structure and secured to one of said structures, a second member concentric to said axis and rotatably carried by the rst mentioned member, said member and second member providing a chamber therebetween, uid connections by way of said member and said second member yto said chamber, and a device engaged with said second member and with the structure other than the one to which said member is secured and operative upon said second member to preclude rotation of f the second member relatively to the structure with which said device is engaged.

1l. In a machine of the character described, a supporting structure, a, structure revolvable upon said supporting structure, and means for conveying a fluid betweensaid supporting `structure and said revolvable structure, said means including a swivel joint free of direct connection with one of said structures and consisting of a member concentric to the axis for the rotatable structure and secured to one of said structures, a second member ooncentricto said axis and rotatably carried by the rst mentioned member, said member and second member providing 'a chamber therebetween,- iluid connectionsby way of said member and said second member to said chamber, and a device secured to one of said structures and to said second member for precluding rotation of said secondv member relatively to the structure other than the one to which said member is secured, said device. and said second member being adapted to have substantially avertical movement relatively to each other. f

l2. In a machine of the character described, a supporting structure, a structure revolvable about 40 f i said supporting structure; and means for,convey,.

a Vvertical airis of vsaid Vsupporting "structuredV and Y 7 connection leading from'said source oi steamVv said means including a swived joint freeof direct connection with' one'of saidstructures and con-#7'V sisting of a member concentric tothe. axis for the VrotatableY structureand secured .toone of said structures,- a 'second' memberconcentrictdsaid vaxis and rotatably'carriedby the first mentioned member,A saidjmember'f and secondv member providing a chamberxtherebetween, iiuid connections bywa'y of said memberand-said second member* to said chamber, and a device for precluding ro-J tation ofrsaid secondfmember relatively/*to'the `structure other-than'the one to which said rmemk ber'is. secured, saidv VdeviceY and said secondA mem-l Vber being. adapted to have substantially a Vvertiecal movement relatively to each other'.

,13, In a machine of the character described, a

4car body, a Y revolvable platformv thereon, y.steamV actuated mechanism on'saidrevolvable platform,

a diiierent car `body,`av sourceof steamsupplyionf said fdiierent car body, andxmeans forconveying steam.Y from saidscqi'ircel of steam supply to said -steam;actuated mechanism, said meansgjinclud` ing Va :swivel Ajoint 'freeof directrco'nnection Vwith said car Vbody and having oneY element'thereofV :fixed to said revolvable platform andanother elem'eritfthereofV carried by and relatively Vrotatableffv about a vertical axisupon said supporting struc#` withrespect to theiflrst mentioned elements`aid elements togetherA providing a chamber, a steam supply to said chamber, asteam connection lead-` ,lng from said chamberV toV said steam actuated. mechanisrmand'a' device connected to 'thecarfY other structure, and said swivel jointV consisting t of AAa member concentric to the Vaxis for thercy bodyand saidotherelement for vprecluding rotation of said otherelement of 'said swivel/joint I relatively to said car body.Vv

` Arotative'movement of the second member rela-V 114. In a machine of the c haracterdescribedav supportingstructure, a structure revolv'ableupon ing a iiuid between saidsupporting structure and Vof :said structures fand cimsistingV of- -a member ,concentricfto the axis for'the rotatable structure and secured'to on e, o f' saidstructures,"aY jsecond member concentric to said axis and rotat- 2 Y ably carried by Ythe ViirstV mentioned member, .said 'j member andv second member providing'fav chamjbeiy therebetween, fluid connections byv vWayY of Ysaid memberand saidgse'cond member to said: chamber, anda tongue and-slot interengagingA Y Y device between randV connected tofsaid l second member and thestructure other thantheone to which said membervis secured for V'preventing tively to said last mentioned'structur'eLi '15. In1am Vchine ofthe characterV` described,

a f snpp'orting structure V a structure revolvable uponV said 'supportingstructura 'and meansY for A conveying auid between said" supporting 'struc-Y t ture and saidlrevolvablegstructure;said means including a swivel joint free` of direct-connection with one of'said structures andv consisting of a' member concentric to the axis for the rotatable structure and securedto oneof said structures,

, Vmentioned structure, said-device and` saidsecond `a second member concentric to s'aid axis and rotatablyca'rried by the. first mentioned memberlrissecured frpreventingjrotative movement Yc1 tl'lejseco'ndV member Vrelatively to said :last

mentionedistructure; said device and vsaid `second member Vbeing adapted `to havesubstantially a.

vertical movement relativelytto' each other.'` 1

.. '16; In a machine fofv the character-described j a' supporting structure, a structure/Erevolvable" y about agvertical axis upon saidsupporting'struc-' ture,"`and Vmeansorconveying a uid between mountedlin its entirety'upon one of said vstructures 'an'd-ffreeof direct `connection with.V the,

otherstructure,V andsaid swivel jointconsisting of a; memberconcentric to thelaXis for thelro-V tatable structure and secured to one z of said' memberto said chamber, and a tongue and .slot

which V'saidmember is secured forV preventing'Y rotative movement structures, a secondmember concentric tojsaidl :axis and rotatably assembledwith the rst mentioned member, the member and second-member 'providing a chamber therebetween, fluid connec-y .tions bywayof said member'and'said fsec'ond-` Y interengaging device between said second memf` ber and the structure otherfthan the one tof fthefsecond member relative.- f

v ly to the last mentioned structure. c f

1'7.'1n a machine of the Acharacter?described,

a'supporting structure, a lstructure revolvable'* tureand meansV for Vconveying a iiu'id between tures'and free @f direct connection `with the ,tatable .structureaand secured .tc one of'said viding a chamber therebetween, fluid connec-g structures, a second memberconcentric tosaidj. Y axis Vand rotatably carried by the iirstrmentioned;r member, the membe'rand'V second memberxpro-g Vtion'sfby way .of lsaidmember and said second f memberto said chamber, and a device betweenl f said second member Vandthe,structure otherlthan theV VoneV to whichgsaidjmemberjis securedfor@` Y preventing `rotative Vmovement 4of thef secondY memberA relatively to :the last mentioned 'struc-1?V supporting structure, a structurerevolvable,about a vertical anis upon saidsupporting structure,and( y means iorjiconveyi'ng ,a fluid :betweensaidl sup-- 'porting structure .and said re'volvable s'triictura!` `55 connection with one Aof 1said' structuresrandgcon-V sisting of a member Vc'c'mce'ntric to vthe axis` for the, rotatable structure and-secured to one of saidv structures, Va second member concentric to` said axis androtatably carried 'bythe iirst mentioned i said means including aV swivel joint freeV of direct member, 'said memberand second membcrxpror' l? vidinga, chambertherebetween', iiuidI connections f by wayoi said member and'saidsecondmember to saidchamber', and 2a. device carried'by iand be'-` VVtweensai'd second member and the structure free Vof*V said swivel'jont Afor-1 preventing rotative Irrlove-` ment 1 of the second memberlrelatively tothe `last AVmember beingadapted' to ,have substantially `,a

vvertical"movement relatively to cach other, V v

supportin'gstructure, a structurerevolvableaboutjV ,A

i a verticalaxis uponfsaid supporting structure, land means for.;conveying ia-fluid between said supl said means including a swivel joint free of direct connection with one of said structures and consisting of a member concentric to the axis for the rotatable structure and secured to one of said structures, a second member concentric to said axis and rotatably carried by the first mentioned member, said member and second member providing a chamber therebetween, fluid connections by way of said member and said second member ing structure and said revolvable platform, said means including a swivel joint consisting of a member concentric to the axis for the platform and secured to said platforma second member' concentric to said axis and rotatably carried by the rst mentioned member to provide a chamber between said member and said second member, mechanism for xing said second member against rotation relatively to said supporting structure, and fluid connections by way of said member and said second member to said chamber.

2l. In a machine of the character described, a supporting member, a member revolvable about a vertical axis upon said supporting member, and means for conveying a fluid between said supporting member and said revolvable member, said means including a swivel joint consisting of an element concentric to the axis for and secured to the revolvable member, a second element concentric to said axis and rotatably carried by the rst mentioned element to provide a chamber between said element and said second element, mechanism for fixing said element and said second element against rotation relatively to said revolvable member and said supporting member, respectively, and fluid connections by way of said element and said second element to said chamber.

22. In a machine of the character described, a supporting structure, a structure revolvable upon said supporting structure, and means for conveying a uid between said supporting structure and said revolvable structure, said means including a swivel joint mounted upon one of said structures and free of direct connection with the other structure, and said swivel joint consisting of a member secured to one of said structures, a second member rotatably supported by means of a fluid-tight joint upon the first mentioned member, the member and second member providing a chamber therebetween, uid connections by way of said member and said second member to said chamber, and a device between and secured to said second member and the structure other than the one to which said member is secured for locating said second member against rotative movement relative to the last mentioned structure.

23. In a machine of the character described, a supporting structure, a structure revolvable about a vertical axis upon said supporting structure, and means for conveying a fluid between said supporting structure and said revolvable structure, said means including a swivel joint mounted upon one of said structures and free of direct connection with the other structure, and saidv swivel joint consisting of a member concentric to the axis for the rotatable structure and secured to one of said structures, a second member concentric to said axis and rotatably supported by the first mentioned member, the member and second member providing a chamber therebetween, fluid connections by way of said member and said second member to said chamber, and a device upon the structure other than the one to which said memberis secured and engaging the second member for locating said second member against rotative movement relative to the last mentioned structure.

24. In a machine of the character described, a supporting structure, a structure revolvable upon Vsaid supporting structure, and means for conveying a fluid between said supporting structure and said revolvable structure, said means including a swivel joint mounted upon one of said structures and free of direct connection with the other structure, and sai-d swivel joint consisting of a member secured to one of said structures, a second member rotatably supported by means of a iiuid-tight joint upon the first mentioned member, the member and second member providing a chamber therebetween, fluid connections by way of said member and said second member to said chamber, and a tongue and slot interengaging device between and connected to said second member and the structure other than the one t which said member is secured for locating said second member against rotative movement relative to the last mentioned structure.

25. In a machine of the character described, a supporting structure, a structure revolvable about a vertical axis upon said supporting structure, and means for conveying a fluid between said supportingstructure andsaid revolvable structure, said means including a swivel joint mounted upon one of said structures an-d free of direct connection with the other structure, and said swivel joint consisting of a member concentric to the axis for the rotatable structure and secured to, f

one of said structures, a second member concen- ROLF E. LJUNGKULL. 

